Two nearby populations in which there is some movement of individuals between the populations are an example of:

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Gene flow refers to the movement of genes between populations, which can occur through the movement of individuals. In this scenario, there is some movement of individuals between the two nearby populations, which means that there is likely some gene flow happening as well. Disruptive selection refers to a process where extreme traits are favored over intermediate traits, bottleneck effect refers to a sharp reduction in population size that leads to a loss of genetic diversity, and genetic drift is a random process that can lead to changes in allele frequencies in a population over time. While these processes may also be happening in these populations, the movement of individuals between them is the best example of gene flow.

Two Nearby Populations in Which There Is Some Movement of Individuals